Chemistry, asked by SushantB, 2 months ago

Which method of laboratory preparation of oxygen gas more effective : by using heat or without using heat and why​

Answers

Answered by sarvesh2007nd
8

Answer:

Without heating method

Explanation:

Oxygen gas can be prepared in the laboratory by hydrogen peroxide and manganese dioxide. In this reaction manganese dioxide is used as catalyst. ... The produced oxygen gas is collected in the gas jar by downward displacement of water.

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Answered by pinkyrani98760
2

Answer:

Without heating method

Oxygen gas can be prepared in the laboratory by hydrogen peroxide and manganese dioxide. In this reaction manganese dioxide is used as catalyst. ... The produced oxygen gas is collected in the gas jar by downward displacement of water.

Please mark my answer as the brainliest

Explanation:

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